Cannot use the package with strict typescript config

Short description

Currently this package cannot be used when we use strict typescript configuration.

Steps to reproduce

nest new foo --strict (Note the --strict argument)
npm install --save @itgorillaz/configify
Add ConfigifyModule in the imports array in app.module.ts:

@Module({
  imports: [ConfigifyModule.forRootAsync()],
  controllers: [AppController],
  providers: [AppService],
})
export class AppModule {}

npm run start:dev

We get the following error:

node_modules/@itgorillaz/configify/src/configify.module.ts:235:15 - error TS2769: No overload matches this call.
  Overload 1 of 2, '(...items: ConcatArray<never>[]): never[]', gave the following error.
    Argument of type 'string | string[] | undefined' is not assignable to parameter of type 'ConcatArray<never>'.
      Type 'undefined' is not assignable to type 'ConcatArray<never>'.
  Overload 2 of 2, '(...items: ConcatArray<never>[]): never[]', gave the following error.
    Argument of type 'string | string[] | undefined' is not assignable to parameter of type 'ConcatArray<never>'.
      Type 'undefined' is not assignable to type 'ConcatArray<never>'.

235       .concat(path, this.DEFAULT_CONFIG_FILES)
                  ~~~~

node_modules/@itgorillaz/configify/src/configuration/configuration.registry.ts:22:24 - error TS2345: Argument of type 'any' is not assignable to parameter of type 'never'.

22     this.registry.push(type);
                          ~~~~

node_modules/@itgorillaz/configify/src/configuration/parsers/configuration-parser.factory.ts:30:12 - error TS7053: Element implicitly has an 'any' type because expression of type 'string' can't be used to index type '{ env: DotEnvConfigurationParser; yml: YamlConfigurationParser; yaml: YamlConfigurationParser; json: JsonConfigurationParser; }'.
  No index signature with a parameter of type 'string' was found on type '{ env: DotEnvConfigurationParser; yml: YamlConfigurationParser; yaml: YamlConfigurationParser; json: JsonConfigurationParser; }'.

30     return this.parsers[ext];
              ~~~~~~~~~~~~~~~~~

node_modules/@itgorillaz/configify/src/configuration/parsers/configuration-parser.factory.ts:51:5 - error TS2322: Type 'string | undefined' is not assignable to type 'string'.
  Type 'undefined' is not assignable to type 'string'.

51     return file.split('.').pop();
       ~~~~~~

node_modules/@itgorillaz/configify/src/configuration/parsers/yaml-configuration.parser.ts:2:23 - error TS7016: Could not find a declaration file for module 'js-yaml'. '/home/safal/work/templates/nestjs/template/node_modules/js-yaml/index.js' implicitly has an 'any' type.
  Try `npm i --save-dev @types/js-yaml` if it exists or add a new declaration (.d.ts) file containing `declare module 'js-yaml';`

2 import * as yaml from 'js-yaml';
                        ~~~~~~~~~

node_modules/@itgorillaz/configify/src/configuration/resolvers/aws/parameter-store-configuration.resolver.ts:39:46 - error TS18048: 'e.error' is possibly 'undefined'.

39           .map((e) => `${e.key}: ${e.id} - ${e.error.message}`)
                                                ~~~~~~~

node_modules/@itgorillaz/configify/src/configuration/resolvers/aws/secrets-manager-configuration.resolver.ts:42:46 - error TS18048: 'e.error' is possibly 'undefined'.

42           .map((e) => `${e.key}: ${e.id} - ${e.error.message}`)
                                                ~~~~~~~

node_modules/@itgorillaz/configify/src/interpolation/variables.ts:44:7 - error TS7053: Element implicitly has an 'any' type because expression of type 'string' can't be used to index type '{}'.
  No index signature with a parameter of type 'string' was found on type '{}'.

44       expanded[key] =
         ~~~~~~~~~~~~~

System information

OS: Arch Linux x86_64
Kernel: 6.10.7-arch1-1
Node.js version: v22.7.0
Package manager used in this project: npm
NPM version: 10.8.3

package.json contents:

{
  "name": "foo",
  "version": "0.0.1",
  "description": "",
  "author": "",
  "private": true,
  "license": "UNLICENSED",
  "scripts": {
    "build": "nest build",
    "format": "prettier --write \"src/**/*.ts\" \"test/**/*.ts\"",
    "start": "nest start",
    "start:dev": "nest start --watch",
    "start:debug": "nest start --debug --watch",
    "start:prod": "node dist/main",
    "lint": "eslint \"{src,apps,libs,test}/**/*.ts\" --fix",
    "test": "jest",
    "test:watch": "jest --watch",
    "test:cov": "jest --coverage",
    "test:debug": "node --inspect-brk -r tsconfig-paths/register -r ts-node/register node_modules/.bin/jest --runInBand",
    "test:e2e": "jest --config ./test/jest-e2e.json"
  },
  "dependencies": {
    "@itgorillaz/configify": "^1.2.3",
    "@nestjs/common": "^10.0.0",
    "@nestjs/core": "^10.0.0",
    "@nestjs/platform-express": "^10.0.0",
    "reflect-metadata": "^0.2.0",
    "rxjs": "^7.8.1"
  },
  "devDependencies": {
    "@nestjs/cli": "^10.0.0",
    "@nestjs/schematics": "^10.0.0",
    "@nestjs/testing": "^10.0.0",
    "@types/express": "^4.17.17",
    "@types/jest": "^29.5.2",
    "@types/node": "^20.3.1",
    "@types/supertest": "^6.0.0",
    "@typescript-eslint/eslint-plugin": "^8.0.0",
    "@typescript-eslint/parser": "^8.0.0",
    "eslint": "^8.42.0",
    "eslint-config-prettier": "^9.0.0",
    "eslint-plugin-prettier": "^5.0.0",
    "jest": "^29.5.0",
    "prettier": "^3.0.0",
    "source-map-support": "^0.5.21",
    "supertest": "^7.0.0",
    "ts-jest": "^29.1.0",
    "ts-loader": "^9.4.3",
    "ts-node": "^10.9.1",
    "tsconfig-paths": "^4.2.0",
    "typescript": "^5.1.3"
  },
  "jest": {
    "moduleFileExtensions": [
      "js",
      "json",
      "ts"
    ],
    "rootDir": "src",
    "testRegex": ".*\\.spec\\.ts$",
    "transform": {
      "^.+\\.(t|j)s$": "ts-jest"
    },
    "collectCoverageFrom": [
      "**/*.(t|j)s"
    ],
    "coverageDirectory": "../coverage",
    "testEnvironment": "node"
  }
}

it-gorillaz / configify

Cannot use the package with strict typescript config #46

Short description

Steps to reproduce

System information